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Topic: Spinner Dolphin

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In the News (Thu 19 Apr 18)

  Spinner Dolphin - Wikipedia, the free encyclopedia
The Spinner Dolphin is sometimes referred to as the Long-snouted Spinner Dolphin, particularly in older texts, to distinguish it from the similar Clymene Dolphin which is often called the Short-snouted Spinner Dolphin.
Spinner Dolphins occur in pelagic tropical waters in all the world's major oceans.
Up to two million Spinner Dolphins, mostly eastern and white-bellied varieties, were killed in the thirty years after purse seine fishing for tuna was introduced in the 1950s.
en.wikipedia.org /wiki/Spinner_Dolphin   (708 words)

 Spinner Dolphin (Stenella longirostris)
Spinner dolphins derive their name from a habit of leaping from the water and warping their bodies into graceful curves, or spinning lengthwise before splashing back.
Spinner dolphins feed on mesopelagic fishes, squid, and shrimp.
Spinner dolphins have mass stranded twice in the Gulf of Mexico.
www.nsrl.ttu.edu /tmot1/stenlong.htm   (364 words)

 Dolphin - Wikipedia, the free encyclopedia
The dolphin brain is large and has a highly structured cortex, which often is referred to in discussions about their high intelligence.
Dolphins are widely believed to be amongst the most intelligent of all animals, though it is hard to say just how intelligent dolphins are as straightforward comparisons of species' relative intelligence are complicated by differences in sensory apparatus, response modes, and nature of cognition.
Most dolphins have acute eyesight, both in and out of the water and their sense of hearing is superior to that of humans.
en.wikipedia.org /wiki/Dolphin   (2278 words)

 Spinner Dolphin: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-07)
The clymene dolphin (stenella clymene), in some texts known as the short-snouted spinner dolphin, is dolphin endemic to the atlantic ocean....
The atlantic spotted dolphin (stenella frontalis) is a dolphin found in the gulf stream of the north atlantic ocean....
The atlantic white-sided dolphin (lagenorhynchus acutus) is a distinctively coloured dolphin found in the cool to temperature waters of the north atlantic ocean....
www.absoluteastronomy.com /encyclopedia/s/sp/spinner_dolphin.htm   (1342 words)

 About Pacific Whale Foundation   (Site not responding. Last check: 2007-10-07)
Spinner dolphins show a significant increase in activity toward dusk as they group together to leave their protected rest coves and head for the open sea in search of food.
Dolphins traveling in moving schools are often seen rising as much as l/2 of their bodies out of the water, then slapping their back, side, or belly against the surface of the water.
Dolphins are highly perceptive of their surrounding environment, and are often found playing with inanimate objects in both captivity and the wild.
www.pacificwhale.org /learn/watchingd.html   (1617 words)

 Dolphin Feature - The Spinner Dolphin
The Spinner dolphin is found in all the tropical and warm temperate waters around the world.
Spinner dolphins grow to a length of 1.7-2.5 meters (5.5-7 feet) long at adulthood, and will weigh in around 75-95 kg (165-209 pounds), and newborns range from 0.75 to 0.85 meters.
Spinner dolphins have been known to associate, and even travel with pods of other species of dolphins and whales.
www.suite101.com /article.cfm/dolphins/33717   (441 words)

 Untitled Document   (Site not responding. Last check: 2007-10-07)
Dolphins that live in warmer water tend to have a lower surface area to mass ratio in order to maximize heat flux.
A study conducted on the Hawaiian spinner dolphin and the Pacific bottlenose dolphin is a perfect example of heat dissipation and conservation differences due to prefered habitat temperature.
Both of these dolphins were kept in tanks of sea water at 27 degrees C but their core temperatures were significantly different from one another.
www.bio.davidson.edu /people/midorcas/animalphysiology/websites/2004/Harden/page7.htm   (476 words)

 Hawaiian Spinner Dolphins, dolphins in Hawaii pictures video
The Hawaiian Spinner Dolphins are under threat from unrestricted and unregulated growth of tourism.
Dolphins in Hawaii are commonly termed as "porpoise" by local folks, especially fishermen, who use the word "dolphin" when referring to the dolphin fish, or mahi mahi.
Spinner dolphin's pectoral flippers are used to steer them through the water, and they also use them to stroke one another, increasing the social bond between them.
www.sailhawaii.com /spinnerdolphins.html   (1087 words)

 Welcome to The Dolphin Place - FAQ about Dolphins and Whales
Dolphins are highly intelligent creatures; in fact, their brain size is larger in proportion to their body weight than ours is, and considerable evidence exists attesting to their intelligence.
Dolphins have colonized all oceans and seas of the planet, from polar to tropical regions.
Dolphins are born with a small amount of hair on their beak (nose), but in when they become adults, only the hair follicles remain.
thedolphinplace.com /QandA.html   (1795 words)

 The Spinner Dolphin
Spinner dolphins are found in the Atlantic, Indian and Pacific Oceans, where they are restricted to tropical, subtropical and less often warm, temperate regions.
Spinner dolphins are characterised by a long slender beak with a fl tip and fl lips, and an erect dorsal fin.
Spinner dolphins used to occur in herds of pods of >1000 animals, although nowadays occurrences of herds around 300 hundred are high, and in fact pods of 20 to 100 animals are more common.
www.ms-starship.com /sciencenew/spinner_dolphin.htm   (1051 words)

 Spinner dolphin foraging
The methods we used to study the movements of spinner dolphins are the same as the methods we used to study the mesopelagic boundary community.
It was previously hypothesized that spinner dolphins spent the entire night foraging offshore, however, our research has shown that spinner dolphins follow the horizontal movements of their prey.
Spinner dolphins forage on patches that are very different from patches in which they are not found.
www2.hawaii.edu /~benoit/spinners.html   (522 words)

 ACS spinner dolphin Cetacean Fact Sheet - American Cetacean Society
Spinners in general all share common characteristics: their bodies are slender, their beaks are long and thin (except for the Atlantic short-snouted spinner) and their flippers are small and pointed at the tips.
In the eastern tropical Pacific, spinner dolphins swim with yellowfin tuna, an association that has led to the slaughter of hundreds of thousands of spinners in the purse-seine tuna fishery.
STATUS Whitebelly and eastern spinner dolphins in the eastern tropical Pacific have suffered enormous population losses as a result of entanglement in the nets of tuna fishermen.
www.acsonline.org /factpack/SpinnerDolphin.htm   (775 words)

 SharkFriends Spinner Dolphin Page   (Site not responding. Last check: 2007-10-07)
The Spinner dolphin, also known as the Rollover, Longsnout, Long-snouted Spinner dolphin, or Long-beaked dolphin, is famous for its fantastic jumps high out of the water.
Spinner dolphins are seen most frequently around Hawaii, Mexico, and Japan.
Because of their acrobatic talents they were one of the first dolphins to be captured for aquariums, but they have a poor survival rate in captivity.
www.sharkfriends.com /spinner.html   (186 words)

 Spinner Dolphin of Hawaii
Survival of the species: The Spinner Dolphin is one of the hardest hit populations of wild dolphins by the fishing industry, senselessly killed and thrown overboard as incidental take.
Spinner dolphin mothers have mammary glands which are hidden beneath slits on their under-belly.
Dolphins sleep with one eye open so that they are able to discern shadows of predators on the white sandy floor of the bays.
www.stardewar.com /spinner_dolphin_of_hawaii.htm   (894 words)

 The Hawaiian Spinner Dolphin - Kenneth S. Norris
Beginning with a description of the spinner dolphin species, including its morphology and systematics, the book examines the ocean environment and organization of dolphin populations and the way this school-based society of mammals uses shorelines for rest and instruction of the young.
The authors argue that dolphins may legitimately be called "cultural", and they turn in their conclusion to a comprehensive evolutionary analysis of this marine cultural system with its behavioral flexibility and high levels of cooperation.
In a challenging new interpretation of how cultural organisms may evolve, they propose that spinner dolphin society be viewed as a set of nested levels of organization that influence one another by selectional biases.
www.englishbooks.it /BUS/0520082087/The_Hawaiian_Spinner_Dolphin.htm   (335 words)

 SPINNER DOLPHIN-- Kids' Planet -- Defenders of Wildlife
Spinner Dolphins are found in tropical and subtropical oceans worldwide.
Spinners often mix with pilot whales, spotted dolphins, yellowfin, and skipjack tuna.
In 1990, "Dolphin Safe" labels (certifying that no dolphins were encircled to catch tuna) were placed on tuna cans, reducing dolphin deaths in tuna nets by 97 percent.
www.kidsplanet.org /factsheets/spinnerdolphin.html   (267 words)

 Archived conservation news articles on Spinner Dolphin
The feisty spinner dolphin was separated from her mother in the Gulf of Mexico a year ago and has not seen another dolphin since.
The hyperactive and feisty spinner dolphin has not seen another of its kind since it was separated from its mother in the Gulf of Mexico a year ago.
Harley the spinner dolphin recently has been learning to mount a stretcher, be raised from her tank and placed into a container to prepare for an interstate...
conservation.mongabay.com /news/Spinner_Dolphin.htm   (688 words)

 Stenella longirostris, Spinner Dolphin at MarineBio.org
Spinner dolphins are dark gray on the dorsal side with a lighter gray area that runs from the eyes to the tail.
Spinner dolphins are a very gregarious species frequently traveling together in schools and with other species, such as the Spotted dolphin and Humpback whales.
Spinner dolphins, Stenella longirostris, particularly Whitebelly and Eastern Spinner dolphins in the eastern tropical Pacific, have significantly decreased in population size due to entanglement in the purse-seine nets used by the tuna fishing industry.
marinebio.org /species.asp?id=359   (906 words)

 Spinner Dolphin Behavior, pictures, Why do Spinner Dolphins Spin?
The spinner dolphins usually perform a series of spins, each spin tending to be made with less energy, finally finishing up with an emphatic side slap.
Spinner dolphins maximize the effect of this splash by twisting around to land in a belly-flop, or back-flop.
Spinner dolphins' pectoral flippers are used to steer them through the water, They also use them to stroke one another, increasing and affirming social bonds.
wilddolphin.org /behavior.html   (1290 words)

 Dolphin CD
The dolphin sounds on this stereo CD were recorded from kayaks and small boats along the Kona Coast of the Big Island of Hawaii.
Dolphins possess three sonic emitters, two chambers, one on each side of their bow hole and one laryngeal type that are used to transmit sound.
Another reason for feeding at night is that dolphins have a great advantage of being able to use sound as sight, which most of their prey and dolphin predators do not have.
www.magicisle.com /dolphins.htm   (2155 words)

 Hawaiian Spinner Dolphin
A population of approximately 250-300 spinner dolphins (2001 count) inhabit the lagoon and nearshore waters at Midway Atoll.
Spinner dolphin research is currently being conducted by Oceanic Society researchers and volunteers, and Texas AandM University.
Tiiger and cookie-cutter sharks are the spinner dolphin's main predatory threat at Midway.
www.fws.gov /midway/wildlife/dolphin.html   (324 words)

 Oceanic Society - Research Expeditions: Midway: Spinner Dolphins
Although spinner dolphins have been studied in the marine ecosystem along the main Hawaiian Islands, to date no study has been conducted on Midway spinners.
Midway is an ideal location to study spinner dolphins; the shallow, clear waters inside the atoll allow for detailed observations.
Dolphins will also be tracked from a land station in order to assess dolphin movement patterns and vessel interactions.
www.oceanic-society.org /pages/alltrips/rschtrip2.html   (424 words)

 Hawaii Dolphins | Life of a Spinner Dolphin, facts information
The dolphins are not actually unconscious as only parts of their brains are asleep at any one time.
During the period of rest, the dolphins must be grouped very tightly together, combining their eyes into a "super-organ" upon which all of the animals rely.
As the spinners awaken from their rest, some members begin to spin, urging the school to move out of the bay.
wilddolphin.org /spinner.html   (651 words)

 Spinner Dolphin: Marine Mammals: Audio Gallery for Discovery of Sound in the Sea
The spinner dolphin is the most common small dolphin in the warm waters of the tropics.
Spinner dolphins can inhabit in-shore waters and waters around islands, although most spinner dolphin populations inhabit the open ocean, such as the tropical Pacific Ocean.
Spinner dolphins appear to be striped, for they have a dark stripe in the very top of their body, a lighter gray stripe on their sides, and a white underside.
www.dosits.org /gallery/marinemm/23.htm   (351 words)

 Costa Rican Spinner Dolphins - Drake Bay, Costa Rica
When we encounter the Spinners, they are usually in pods of 500 to thousands and when we get into the water, it is a pure wall of dolphins as far as you can see.
It was a small group of Spinners, about 150, and it contained large numbers of tiny babies and hurt Spinner dolphins (with broken, bent fins, bumps, holes, etc.) We think the big group was close by and were hearding in fish for this slower group to eat.
When breaching, the Long-Snouted Spinner Dolphin hurls itself up to 9 1/4 feet (3 m) into the air, then twists its body into sinuous curves or spins round on its longitudinal axis up to seven times in a single leap.
divinedolphin.com /Spinners   (492 words)

 Discovering Whales - The Dolphin
The Dolphin is the largest and most diverse family of cetaceans.
Most forms of this family have functional teeth in both jaws, a melon with a distinct beak, smooth sloping foreheads, a single notch in the middle of their flukes and a dorsal fin.
Of the 26 species of dolphin 13 tend to have long, well-defined beaks and streamlined slightly robust bodies.
www.omplace.com /omsites/discover/DOLPHINS   (123 words)

 LiveScience.com - How Dolphins Spin, and Why
The movement is slow because the dolphin's fin and flippers drag against the water, which adds a lot of resistance.
As it enters the air, the dolphin sheds all of the resistant forces that slowed it down in the water.
Dolphins have sensitive skin with lots of nerve endings, so remoras may be an irritant to the animals, Fish figures.
www.livescience.com /animalworld/060327_mm_dolphin_spin.html   (608 words)

Description: The spinner dolphin is usually less than 2m in length, with a long, slender beak.
Spinners often school in large numbers, groups of over 300 having been seen in UAE waters.
Range: The spinner dolphin's presence in the Arabian Gulf was first evidenced by skulls found on UAE offshore islands in 1995.
www.arabianwildlife.com /nature/marine/mml13.html   (324 words)

 Dolphin T-Shirts
Dolphins are certain aquatic mammals related to whales and porpoises.
Killer Whales and some related species belong to the Delphinidae family and therefore qualify as dolphins, even though they are called whales in common language.
Dolphins are social animals, living in so called schools of up to a dozen animals.
www.junglewalk.com /shop/Dolphin-t-shirts.htm   (453 words)

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